@media screen and (max-width:1024px){
  html{
    font-size: 42.66px !important;
  }
}
@media screen and (min-width:1920px){
  html{
    font-size: 80px !important;
  }
}
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box
}
body{
  background: url('../img/bg.jpg') no-repeat 0 0;
  background-size: cover;
}
.box{
  max-width: 1920px;
  min-width: 1024px;
  margin: 0 auto;
  padding: 1.1rem 0.275rem 0;
  display: flex;
  min-height: 720px;
}
.cloum{
  /* height: 100%; */
  flex: 3;
  background-color: aquamarine;
}
.cloum :nth-child(2){
  flex: 4;
}
.border_img{
  width: 400px;
  height: 300px;
  border: 15px solid #ccc;
  border-image-source: url('../img/border.jpg');
  border-image-slice: 135;
  border-width: 28px 30px 22px 29px;
  border-image-repeat: round;
}